Performa Softener Application Autotrol 268.
With 440i 6 day timer assembly, no longer being sold.
Use either the 268 Performa with Logix Timer, or in some cases the Autotrol 255 valve ( with 256 by pass ) could be used.
The 268 Performa Valve replaced the 168 several years ago. This valve is used on Residential and Light Commercial applications.